Enter the pulse width and the period into the calculator to determine the duty cycle.

## Duty Cycle Formula

The following formula is used to calculate a duty cycle.

D = PW / T

- Where D is the duty cycle
- PW is the pulse width (s)
- T is the period (s)

## Duty Cycle Definition

A duty cycle is defined as the ratio of the pulse width to the period of a transmitter, and is a measure of the time that the transmitter is emitting a signal.

## Duty Cycle Example

How to calculate duty cycle?

**First, determine the pulse width.**For this example we will say the pulse width is .03 seconds.

**Next, determine the period.**For this example we will assume the period is .05 seconds.

**Finally, calculate the duty cycle.**Using the formula above we find the duty cycle is: .03/.05 = .60 = 60%.

## FAQ

**What is a duty cycle?**

A duty cycle measure the amount of time a transmitter is emitting a signal. This time is often a fraction of a total frequency period. The longer the duty cycle, the stronger the transmittion.